3pcs 2S Li-ion 18650 Lithium Battery Charger Protection Board 7.4V Overcurrent Overcharge Overdischarge Protection

Features: 1. The protection board uses imported lithium polymer rechargeable battery protection IC 2. Built-in three overcurrent detection circuit (current 1, current 2, load short circuit) 3. Through the MOS tube can control the battery charge and discharge 4. Connect the terminals of the charger with high withstand voltage devices 5. Operating temperature range: negative 40 degrees to 60 degrees 6. Built-in high-precision voltage detection circuit 7. Low current consumption Welding point Description: B + is connected to the positive side of the battery pack MB Connect the contacts in battery 1 and battery 2 B - Connect the negative of the battery pack P + is connected to the positive terminal (charge side / discharge side) P-negative / negative terminal (shared with charge / discharge) Voltage Charging voltage DC9V CC/CV (Max.12V) Single-section equalization voltage / Current Single-phase equalization current / Single section current consumption (self-consumption) 6uA Maximum sustained discharge current 4A Overcharge protection Overcharge detection voltage 4.29V Accuracy: 0.025V Overcharge detection delay time 1s Overcharge detection recovery voltage 4.05V Accuracy: 0.025V Overdischarge protection Overdischarge detection voltage 3V Accuracy: 0.1V Overdischarge detection delay time 128ms Overdischarge detection recovery voltage 3.2V Accuracy: 0.1V Overcurrent protection Overcurrent detection voltage 200mv Accuracy: 30mv Overcurrent detection current 9.8A Accuracy: 3A Overcurrent detection delay time 12ms Recovery status Automatic recovery Short circuit protection Detection status External short circuit Detection delay time 50us Recovery status Automatic recovery Internal resistance Protection circuit (MOSPET) 21m Temperature Working temperature range -40~+52C Storage temperature range -40~+125C Product Usage: 2 strings of nickel cobalt manganese, lithium cobalt oxide, lithium manganese oxide rechargeable batteries 2 series lithium polymer rechargeable battery Notice: 1. During connection,pay attention to input/output voltage,load current using condition, and make sure that board power consumption will not surpass tolerance consumption 2. When connect with battery,it may not discharge;in this condition,continuous charging can let it restore to normal operating state 3. When overcharging battery and overdischarging battery are mixed up,it will become charging and overdischarging state, both of them cannot perform charging and discharging 4. Although this protection board internallt installs anti-static protection circuit, please don't force too high static electricty on protection board Package included: 3 x 2S Li-ion 18650 Lithium Battery Charger Protection Board